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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

A sphere of radius 50 cm is maintained at a constant temperature, radiates energy at the rate of 0.5 kcal/s. Then the emissive power of sphere is (J = J/kcal)

Answer: (B)

Solution

Power W and area m, so

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Question ID VK-062941